Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-12-28 16:56:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

btrfs: uninline some static inline helpers from backref.h

Browse Source 
There are many helpers doing simple things but not simple enough to
justify the static inline. None of them seems to be on a hot path so
move them to .c.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2024-02-16 13:36:13 +01:00
parent ef923440e2
commit 2aa756ec49
2 changed files with 102 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
fs/btrfs/backref.c
View File

@ -2856,6 +2856,16 @@ struct btrfs_backref_iter *btrfs_backref_iter_alloc(struct btrfs_fs_info *fs_inf
return ret;
}
static void btrfs_backref_iter_release(struct btrfs_backref_iter *iter)
{
iter->bytenr = 0;
iter->item_ptr = 0;
iter->cur_ptr = 0;
iter->end_ptr = 0;
btrfs_release_path(iter->path);
memset(&iter->cur_key, 0, sizeof(iter->cur_key));
}
int btrfs_backref_iter_start(struct btrfs_backref_iter *iter, u64 bytenr)
{
struct btrfs_fs_info *fs_info = iter->fs_info;
@ -2948,6 +2958,14 @@ int btrfs_backref_iter_start(struct btrfs_backref_iter *iter, u64 bytenr)
return ret;
}
static bool btrfs_backref_iter_is_inline_ref(struct btrfs_backref_iter *iter)
{
if (iter->cur_key.type == BTRFS_EXTENT_ITEM_KEY ||
iter->cur_key.type == BTRFS_METADATA_ITEM_KEY)
return true;
return false;
}
/*
* Go to the next backref item of current bytenr, can be either inlined or
* keyed.
@ -3048,6 +3066,19 @@ struct btrfs_backref_node *btrfs_backref_alloc_node(
return node;
}
void btrfs_backref_free_node(struct btrfs_backref_cache *cache,
struct btrfs_backref_node *node)
{
if (node) {
ASSERT(list_empty(&node->list));
ASSERT(list_empty(&node->lower));
ASSERT(node->eb == NULL);
cache->nr_nodes--;
btrfs_put_root(node->root);
kfree(node);
}
}
struct btrfs_backref_edge *btrfs_backref_alloc_edge(
struct btrfs_backref_cache *cache)
{
@ -3059,6 +3090,52 @@ struct btrfs_backref_edge *btrfs_backref_alloc_edge(
return edge;
}
void btrfs_backref_free_edge(struct btrfs_backref_cache *cache,
struct btrfs_backref_edge *edge)
{
if (edge) {
cache->nr_edges--;
kfree(edge);
}
}
void btrfs_backref_unlock_node_buffer(struct btrfs_backref_node *node)
{
if (node->locked) {
btrfs_tree_unlock(node->eb);
node->locked = 0;
}
}
void btrfs_backref_drop_node_buffer(struct btrfs_backref_node *node)
{
if (node->eb) {
btrfs_backref_unlock_node_buffer(node);
free_extent_buffer(node->eb);
node->eb = NULL;
}
}
/*
* Drop the backref node from cache without cleaning up its children
* edges.
*
* This can only be called on node without parent edges.
* The children edges are still kept as is.
*/
void btrfs_backref_drop_node(struct btrfs_backref_cache *tree,
struct btrfs_backref_node *node)
{
ASSERT(list_empty(&node->upper));
btrfs_backref_drop_node_buffer(node);
list_del_init(&node->list);
list_del_init(&node->lower);
if (!RB_EMPTY_NODE(&node->rb_node))
rb_erase(&node->rb_node, &tree->rb_root);
btrfs_backref_free_node(tree, node);
}
/*
* Drop the backref node from cache, also cleaning up all its
* upper edges and any uncached nodes in the path.
@ -3130,6 +3207,19 @@ void btrfs_backref_release_cache(struct btrfs_backref_cache *cache)
ASSERT(!cache->nr_edges);
}
void btrfs_backref_link_edge(struct btrfs_backref_edge *edge,
struct btrfs_backref_node *lower,
struct btrfs_backref_node *upper,
int link_which)
{
ASSERT(upper && lower && upper->level == lower->level + 1);
edge->node[LOWER] = lower;
edge->node[UPPER] = upper;
if (link_which & LINK_LOWER)
list_add_tail(&edge->list[LOWER], &lower->upper);
if (link_which & LINK_UPPER)
list_add_tail(&edge->list[UPPER], &upper->lower);
}
/*
* Handle direct tree backref
*

104
fs/btrfs/backref.h
View File

@ -302,25 +302,6 @@ int btrfs_backref_iter_start(struct btrfs_backref_iter *iter, u64 bytenr);
int btrfs_backref_iter_next(struct btrfs_backref_iter *iter);
static inline bool btrfs_backref_iter_is_inline_ref(
struct btrfs_backref_iter *iter)
{
if (iter->cur_key.type == BTRFS_EXTENT_ITEM_KEY ||
iter->cur_key.type == BTRFS_METADATA_ITEM_KEY)
return true;
return false;
}
static inline void btrfs_backref_iter_release(struct btrfs_backref_iter *iter)
{
iter->bytenr = 0;
iter->item_ptr = 0;
iter->cur_ptr = 0;
iter->end_ptr = 0;
btrfs_release_path(iter->path);
memset(&iter->cur_key, 0, sizeof(iter->cur_key));
}
/*
* Backref cache related structures
*
@ -448,83 +429,22 @@ struct btrfs_backref_edge *btrfs_backref_alloc_edge(
#define LINK_LOWER (1 << 0)
#define LINK_UPPER (1 << 1)
static inline void btrfs_backref_link_edge(struct btrfs_backref_edge *edge,
struct btrfs_backref_node *lower,
struct btrfs_backref_node *upper,
int link_which)
{
ASSERT(upper && lower && upper->level == lower->level + 1);
edge->node[LOWER] = lower;
edge->node[UPPER] = upper;
if (link_which & LINK_LOWER)
list_add_tail(&edge->list[LOWER], &lower->upper);
if (link_which & LINK_UPPER)
list_add_tail(&edge->list[UPPER], &upper->lower);
}
static inline void btrfs_backref_free_node(struct btrfs_backref_cache *cache,
struct btrfs_backref_node *node)
{
if (node) {
ASSERT(list_empty(&node->list));
ASSERT(list_empty(&node->lower));
ASSERT(node->eb == NULL);
cache->nr_nodes--;
btrfs_put_root(node->root);
kfree(node);
}
}
static inline void btrfs_backref_free_edge(struct btrfs_backref_cache *cache,
struct btrfs_backref_edge *edge)
{
if (edge) {
cache->nr_edges--;
kfree(edge);
}
}
static inline void btrfs_backref_unlock_node_buffer(
struct btrfs_backref_node *node)
{
if (node->locked) {
btrfs_tree_unlock(node->eb);
node->locked = 0;
}
}
static inline void btrfs_backref_drop_node_buffer(
struct btrfs_backref_node *node)
{
if (node->eb) {
btrfs_backref_unlock_node_buffer(node);
free_extent_buffer(node->eb);
node->eb = NULL;
}
}
/*
* Drop the backref node from cache without cleaning up its children
* edges.
*
* This can only be called on node without parent edges.
* The children edges are still kept as is.
*/
static inline void btrfs_backref_drop_node(struct btrfs_backref_cache *tree,
struct btrfs_backref_node *node)
{
ASSERT(list_empty(&node->upper));
btrfs_backref_drop_node_buffer(node);
list_del_init(&node->list);
list_del_init(&node->lower);
if (!RB_EMPTY_NODE(&node->rb_node))
rb_erase(&node->rb_node, &tree->rb_root);
btrfs_backref_free_node(tree, node);
}
void btrfs_backref_link_edge(struct btrfs_backref_edge *edge,
struct btrfs_backref_node *lower,
struct btrfs_backref_node *upper,
int link_which);
void btrfs_backref_free_node(struct btrfs_backref_cache *cache,
struct btrfs_backref_node *node);
void btrfs_backref_free_edge(struct btrfs_backref_cache *cache,
struct btrfs_backref_edge *edge);
void btrfs_backref_unlock_node_buffer(struct btrfs_backref_node *node);
void btrfs_backref_drop_node_buffer(struct btrfs_backref_node *node);
void btrfs_backref_cleanup_node(struct btrfs_backref_cache *cache,
struct btrfs_backref_node *node);
void btrfs_backref_drop_node(struct btrfs_backref_cache *tree,
struct btrfs_backref_node *node);
void btrfs_backref_release_cache(struct btrfs_backref_cache *cache);